It's a tricky task to make nature itself into an exhibition. Nature walks (in botanical gardens and model farms, for instance) often rely not on a group of objects or other predetermined set of material, but on an unpredictable troupe of actors who may or may not be on stage that day. What a challenge to present material that the visitor might not even get to see! But certain display tactics can help smooth over the possible unevenness of this living exhibition. The Anne Kolb Nature Center in Hollywood, Florida centers on a boardwalk that winds through a section of mangrove habitat. (It also has a lovely visitor's center which, when I visited, included a display of contemporary art on spiffy movable walls.) At the start of the walk, large signs with vivid pictures of the animals (above) introduce the visitor to the point of the exhibition: to VIEW the plants and animals. Further, to help the visitor engage—and to help them see the critters tucked away in their hidey-holes—the Center offers a handout with a checklist of the plants and animals one might encounter on the walk. This is an easy, effective, low-cost way to encourage visitors (especially kids) to really look, and even to try to identify the things they see. It would be fantastic as an app for mobile devices too.